<div xmlns:ext="http://www.extjs.com" class="body-wrap"><h1>Class <a href="source/KeyMap.html#cls-Ext.KeyMap">Ext.KeyMap</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/KeyMap.html#cls-Ext.KeyMap">KeyMap.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/KeyMap.html#cls-Ext.KeyMap">KeyMap</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info">Object</td></tr></table><div class="description">Handles mapping keys to actions for an element. One key map can be used for multiple actions.
The constructor accepts the same config object as defined by <a href="output/Ext.KeyMap.html#Ext.KeyMap-addBinding" ext:member="addBinding" ext:cls="Ext.KeyMap">addBinding</a>.
If you bind a callback function to a KeyMap, anytime the KeyMap handles an expected key
combination it will call the function with this signature (if the match is a multi-key
combination the callback will still be called only once): (String key, Ext.EventObject e)
A KeyMap can also handle a string representation of keys.<br />
Usage:
 <pre><code><i>// map one key by key code</i>
<b>var</b> map = <b>new</b> Ext.KeyMap(<em>"my-element"</em>, {
    key: 13, <i>// or Ext.EventObject.ENTER</i>
    fn: myHandler,
    scope: myObject
});

<i>// map multiple keys to one action by string</i>
<b>var</b> map = <b>new</b> Ext.KeyMap(<em>"my-element"</em>, {
    key: <em>"a\r\n\t"</em>,
    fn: myHandler,
    scope: myObject
});

<i>// map multiple keys to multiple actions by strings and array of codes</i>
<b>var</b> map = <b>new</b> Ext.KeyMap(<em>"my-element"</em>, [
    {
        key: [10,13],
        fn: <b>function</b>(){ alert(<em>"Return was pressed"</em>); }
    }, {
        key: <em>"abc"</em>,
        fn: <b>function</b>(){ alert(<em>'a, b or c was pressed'</em>); }
    }, {
        key: <em>"\t"</em>,
        ctrl:true,
        shift:true,
        fn: <b>function</b>(){ alert(<em>'Control + shift + tab was pressed.'</em>); }
    }
]);</code></pre>
<b>Note: A KeyMap starts enabled</b></div><div class="hr"></div><a id="Ext.KeyMap-props"></a><h2>Public Properties</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Property</th><th class="msource-header">Defined By</th></tr><tr class="property-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-stopEvent"></a><b><a href="source/KeyMap.html#prop-Ext.KeyMap-stopEvent">stopEvent</a></b> : Boolean<div class="mdesc"><div class="short">True to stop the event from bubbling and prevent the default browser action if the
key was handled by the KeyMap (def...</div><div class="long">True to stop the event from bubbling and prevent the default browser action if the
key was handled by the KeyMap (defaults to false)</div></div></td><td class="msource">KeyMap</td></tr></tbody></table><a id="Ext.KeyMap-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-KeyMap"></a><b class="constructor"><a href="source/KeyMap.html#cls-Ext.KeyMap">KeyMap</a></b><span class="openparen">(&nbsp;</span><span title="Required" class="required">Mixed&nbsp;el</span><span class="comma">,&nbsp;</span><span title="Required" class="required">Object&nbsp;config</span><span class="comma">,&nbsp;</span><span title="Optional" class="optional">[String&nbsp;eventName]</span><span class="closeparen">&nbsp;)</span><div class="mdesc"><div class="short"></div><div class="long"><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : Mixed<div class="sub-desc">The element to bind to</div></li><li><code>config</code> : Object<div class="sub-desc">The config (see <a href="output/Ext.KeyMap.html#Ext.KeyMap-addBinding" ext:member="addBinding" ext:cls="Ext.KeyMap">addBinding</a>)</div></li><li><code>eventName</code> : String<div class="sub-desc">(optional) The event to bind to (defaults to "keydown")</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-addBinding"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-addBinding">addBinding</a></b><span class="openparen">(&nbsp;</span><span title="Required" class="required">Object/Array&nbsp;config</span><span class="closeparen">&nbsp;)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">void</span><div class="mdesc"><div class="short">Add a new binding to this KeyMap. The following config object properties are supported:

Property    Type            ...</div><div class="long">Add a new binding to this KeyMap. The following config object properties are supported:
<pre>
Property    Type             Description
----------  ---------------  ----------------------------------------------------------------------
key         String/Array     A single keycode or an array of keycodes to handle
shift       Boolean          True to handle key only when shift is pressed, False to handle the key only when shift is not pressed (defaults to undefined)
ctrl        Boolean          True to handle key only when ctrl is pressed, False to handle the key only when ctrl is not pressed (defaults to undefined)
alt         Boolean          True to handle key only when alt is pressed, False to handle the key only when alt is not pressed (defaults to undefined)
handler     Function         The function to call when KeyMap finds the expected key combination
fn          Function         Alias of handler (for backwards-compatibility)
scope       Object           The scope of the callback function
stopEvent   Boolean          True to stop the event from bubbling and prevent the default browser action if the key was handled by the KeyMap (defaults to false)
</pre>
Usage:
<pre><code><i>// Create a KeyMap</i>
<b>var</b> map = <b>new</b> Ext.KeyMap(document, {
    key: Ext.EventObject.ENTER,
    fn: handleKey,
    scope: this
});

<i>//Add a <b>new</b> binding to the existing KeyMap later</i>
map.addBinding({
    key: <em>'abc'</em>,
    shift: true,
    fn: handleKey,
    scope: this
});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>config</code> : Object/Array<div class="sub-desc">A single KeyMap config or an array of configs</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-disable"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-disable">disable</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">void</span><div class="mdesc"><div class="short">Disable this KeyMap</div><div class="long">Disable this KeyMap<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-enable"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-enable">enable</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">void</span><div class="mdesc"><div class="short">Enables this KeyMap</div><div class="long">Enables this KeyMap<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-isEnabled"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-isEnabled">isEnabled</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">Boolean</span><div class="mdesc"><div class="short">Returns true if this KeyMap is enabled</div><div class="long">Returns true if this KeyMap is enabled<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-on"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-on">on</a></b><span class="openparen">(&nbsp;</span><span title="Required" class="required">Number/Array/Object&nbsp;key</span><span class="comma">,&nbsp;</span><span title="Required" class="required">Function&nbsp;fn</span><span class="comma">,&nbsp;</span><span title="Optional" class="optional">[Object&nbsp;scope]</span><span class="closeparen">&nbsp;)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">void</span><div class="mdesc"><div class="short">Shorthand for adding a single key listener</div><div class="long">Shorthand for adding a single key listener<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>key</code> : Number/Array/Object<div class="sub-desc">Either the numeric key code, array of key codes or an object with the
following options:
{key: (number or array), shift: (true/false), ctrl: (true/false), alt: (true/false)}</div></li><li><code>fn</code> : Function<div class="sub-desc">The function to call</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code>this</code> reference) in which the function is executed. Defaults to the browser window.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.KeyMap-setDisabled"></a><b class="method"><a href="source/KeyMap.html#method-Ext.KeyMap-setDisabled">setDisabled</a></b><span class="openparen">(&nbsp;</span><span title="Required" class="required">Boolean&nbsp;disabled</span><span class="closeparen">&nbsp;)</span><span class="colon">&nbsp;:&nbsp;</span><span class="return">void</span><div class="mdesc"><div class="short">Convenience function for setting disabled/enabled by boolean.</div><div class="long">Convenience function for setting disabled/enabled by boolean.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>disabled</code> : Boolean<div class="sub-desc"></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">KeyMap</td></tr></tbody></table><a id="Ext.KeyMap-events"></a><h2>Public Events</h2><div class="no-members">This class has no public events.</div></div>